:root {
  --color-dark-navy: #0F2B48;
  --color-primary: #1460B7;
  --color-primary-hover: #0F4E99;
  --color-light-blue-bg: #E9F1FC;
  --color-sidebar-bg: #F8FAFC;
  --color-text-main: #111827;
  --color-text-gray: #4B5563;
  --color-border: #E2E8F0;
  --color-white: #ffffff;
}

/* ========= Blog Hero 顶部Banner（截图深蓝色大图头部） ========= */
.blog-hero {
  background-color: var(--color-dark-navy);
  padding: 54px 0 46px;
  color: var(--color-white);
  background-image: linear-gradient(rgba(15,43,72,0.85), rgba(15,43,72,0.85)), url('../images/banner.jpg');
  background-size: cover;
  background-position: center;
}
.breadcrumb {
  font-size: 13px;
  opacity: 0.82;
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--color-white);
  text-decoration: none;
}
.breadcrumb span {
  margin: 0 8px;
}
.blog-hero h1 {
  font-size: 32px;
  font-weight: 700;
  margin: 0 0 18px;
  text-transform: uppercase;
  line-height: 1.3;
  letter-spacing: 0.3px;
}
.post-meta {
  display: flex;
  gap: 24px;
  font-size: 14px;
  opacity: 0.85;
}
.post-meta span i {
  margin-right: 6px;
}

/* ========= Main Blog Layout ========= */
.blog-main {
  padding: 60px 0;
  background-color: var(--color-white);
}
.blog-grid {
  display: grid;
  grid-template-columns: calc(100% - 330px) 300px;
  gap: 44px;
}

.blog-content .feature-img {
  width: 100%;
  margin-bottom: 30px;
}
.blog-content .feature-img img {
  width: 100%;
  height: auto;
  display: block;
}

.blog-content p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-gray);
  margin-bottom: 18px;
}

.blog-content h2 {
  font-size: 20px;
  color: var(--color-text-main);
  margin: 38px 0 14px;
  font-weight: 700;
  position: relative;
  padding-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.2px;
}
.blog-content h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 36px;
  height: 2px;
  background-color: var(--color-primary);
}

.check-list {
  list-style: none;
  padding-left: 0;
  margin: 20px 0 24px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap:10px;
  font-size:15px;
  line-height:1.7;
  margin-bottom:10px;
  color: var(--color-text-gray);
}
.check-list li i {
  color: var(--color-primary);
  margin-top:2px;
}

.key-point {
  background-color: var(--color-light-blue-bg);
  border-radius: 4px;
  padding:20px 18px;
  display:flex;
  gap:14px;
  margin:28px 0 34px;
}
.key-point i {
  color: var(--color-primary);
  font-size:24px;
  flex-shrink:0;
}
.key-point span {
  font-size:14px;
  line-height:1.65;
  color: var(--color-text-main);
}

/* Benefits Grid 5个优势卡片 */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  gap:18px;
  margin:30px 0 38px;
}
.benefit-item {
  text-align:center;
  padding:12px 8px;
}
.benefit-icon {
  font-size:32px;
  color: var(--color-primary);
  margin-bottom:12px;
}
.benefit-item h4 {
  font-size:14px;
  margin:0 0 8px;
  color: var(--color-text-main);
  font-weight:600;
}
.benefit-item p {
  font-size:12.5px;
  line-height:1.55;
  margin:0;
}

/* Applications Grid */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  gap:16px;
  margin:30px 0 38px;
}
.app-card {
  text-align:center;
}
.app-card img {
  width:100%;
  height:auto;
  border-radius:4px;
  margin-bottom:10px;
}
.app-card p {
  font-size:12.5px;
  margin:0;
}

/* Share Bar */
.share-bar {
  display:flex;
  align-items:center;
  gap:12px;
  margin:42px 0 32px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom:24px;
}
.share-bar span {
  font-size:14px;
  font-weight:500;
}
.share-bar a {
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--color-border);
  border-radius:3px;
  color: var(--color-text-gray);
  text-decoration:none;
  transition:0.22s ease;
}
.share-bar a:hover {
  background-color: var(--color-primary);
  color:#fff;
  border-color: var(--color-primary);
}

/* Post Pagination prev next */
.post-pagination {
  display:flex;
  justify-content:space-between;
  gap:28px;
}
.post-prev,
.post-next {
  width:50%;
}
.post-pagination small {
  display:block;
  font-size:12px;
  color: var(--color-text-gray);
  margin-bottom:8px;
  text-transform:uppercase;
  letter-spacing:0.3px;
}
.post-pagination a {
  font-size:14px;
  color: var(--color-text-main);
  line-height:1.48;
  text-decoration:none;
  transition:0.2s;
}
.post-pagination a:hover {
  color: var(--color-primary);
}

/* ========= Sidebar ========= */
.blog-sidebar {
  display:flex;
  flex-direction:column;
  gap:26px;
}
.sidebar-widget {
  background-color: var(--color-sidebar-bg);
  padding:26px 24px;
  border-radius:4px;
}
.sidebar-widget h4 {
  font-size:15px;
  margin:0 0 16px;
  color: var(--color-text-main);
  text-transform:uppercase;
  font-weight:700;
  letter-spacing:0.2px;
}

.search-box {
  display:flex;
  width:100%;
}
.search-box input {
  flex:1;
  height:42px;
  border:1px solid var(--color-border);
  padding:0 14px;
  border-radius:3px 0 0 3px;
  font-size:14px;
  background:#fff;
  outline:none;
}
.search-box input:focus {
  border-color: var(--color-primary);
}
.search-box button {
  height:42px;
  background-color: var(--color-primary);
  color:#fff;
  border:none;
  padding:0 16px;
  border-radius:0 3px 3px 0;
  cursor:pointer;
  transition:0.2s;
}
.search-box button:hover {
  background-color: var(--color-primary-hover);
}

.cat-list {
  list-style:none;
  padding-left:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cat-list li a {
  display:flex;
  justify-content:space-between;
  font-size:14px;
  color: var(--color-text-main);
  text-decoration:none;
  transition:0.2s;
}
.cat-list li a:hover {
  color: var(--color-primary);
}
.cat-list li a span {
  color: var(--color-text-gray);
}

.recent-posts {
  list-style:none;
  padding-left:0;
  margin:0;
}
.recent-item {
  display:flex;
  gap:14px;
  margin-bottom:20px;
}
.recent-item:last-child {
  margin-bottom:0;
}
.recent-item img {
  width:72px;
  height:72px;
  object-fit:cover;
  border-radius:3px;
  flex-shrink:0;
  background:#ddd;
}
.recent-text a {
  font-size:13px;
  line-height:1.45;
  color: var(--color-text-main);
  text-decoration:none;
  display:block;
  margin-bottom:5px;
  transition:0.2s;
}
.recent-text a:hover {
  color: var(--color-primary);
}
.recent-text small {
  font-size:11.5px;
  color: var(--color-text-gray);
}

.sidebar-cta {
  background-color: var(--color-dark-navy);
  color:#ffffff;
  padding:30px 24px;
  border-radius:4px;
}
.sidebar-cta i.fa-headphones {
  font-size:34px;
  margin-bottom:14px;
  display:inline-block;
}
.sidebar-cta h4 {
  font-size:15px;
  margin:0 0 14px;
  text-transform:uppercase;
  color:#fff;
  letter-spacing:0.2px;
}
.sidebar-cta p {
  font-size:13px;
  line-height:1.6;
  opacity:0.86;
  margin:0 0 20px;
}
.btn-cta-dark {
  display:block;
  width:100%;
  text-align:center;
  padding:12px 0;
  background-color: var(--color-primary);
  color:#fff;
  text-decoration:none;
  border-radius:3px;
  font-weight:600;
  font-size:14px;
  transition:0.22s;
}
.btn-cta-dark:hover {
  background-color: var(--color-primary-hover);
}
.btn-cta-dark i {
  margin-left:6px;
}

/* ========= Responsive 严格匹配截图布局适配 ========= */
@media screen and (max-width:1080px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .benefits-grid {
    grid-template-columns: repeat(3,1fr);
  }
  .apps-grid {
    grid-template-columns: repeat(3,1fr);
  }
  .blog-hero h1 {
    font-size:26px;
  }
}

@media screen and (max-width:768px) {
  .benefits-grid {
    grid-template-columns: repeat(2,1fr);
  }
  .apps-grid {
    grid-template-columns: repeat(2,1fr);
  }
  .post-pagination {
    flex-direction:column;
  }
  .post-prev,
  .post-next {
    width:100%;
    margin-bottom:16px;
  }
  .blog-main {
    padding:40px 0;
  }
  .blog-hero {
    padding:36px 0 30px;
  }
  .blog-hero h1 {
    font-size:22px;
  }
  .post-meta {
    flex-wrap:wrap;
    gap:14px;
  }
}

@media screen and (max-width:480px) {
  .benefits-grid {
    grid-template-columns:1fr;
  }
  .apps-grid {
    grid-template-columns:1fr;
  }
}